Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8fa758c716c1a1b…

MALICIOUS

PDF

41.2 KB Created: 2018-12-11 20:05:12 +03:00 Authoring application: TeX (via pdfTeX-1.40.16)
MD5: 08a155cb24b948482df47e2faee11db0 SHA-1: 1b0705f5989bd65f4d6ecee13efe427030ca51ac SHA-256: e8fa758c716c1a1b25c8b1b4199f1740c2b7f16e9309624e88a5cfa6355ede25
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF was flagged by a machine learning classifier as malicious. Static analysis revealed a large number of external links, primarily pointing to PDFs hosted on www.gorillawalker.com. This suggests a link farm or SEO poisoning attack, where the document's primary purpose is to drive traffic to these external resources, potentially for malicious distribution or to manipulate search engine rankings.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9181

Heuristics 2

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://www.gorillawalker.com/holt-mathematics-texas-student-edition-course-3-2007.pdf
    • http://www.gorillawalker.com/bls-winning-spiritual-victories-preparing-for-battles-with-the-enemy.pdf
    • http://www.gorillawalker.com/vastu-shastra-spanish-edition.pdf
    • http://www.gorillawalker.com/cheater-makes-a-cuckold-bundle.pdf
    • http://www.gorillawalker.com/zen-baby.pdf
    • http://www.gorillawalker.com/the-mexican-revolution-a-short-history-1910-1920.pdf
    • http://www.gorillawalker.com/taiwan-cycling-guide-japanese-edition-kindle-edition.pdf
    • http://www.gorillawalker.com/great-escapes-africa-great-escapes-taschen-25th-anniversary-special.pdf
    • http://www.gorillawalker.com/a-da-act-ii-triumphal-march-original-version-bassoon-1.pdf
    • http://www.gorillawalker.com/top-10-hockey-goalies-sports-top-10.pdf
    • http://www.gorillawalker.com/mallorca-east-1-40-000-hiking-map-waterproof-gps-compatible.pdf
    • http://www.gorillawalker.com/mr-mrs-kane-the-complete-series.pdf
    • http://www.gorillawalker.com/embryo-and-fetal-pathology-color-atlas-with-ultrasound-correlation.pdf
    • http://www.gorillawalker.com/collage-volume-i.pdf
    • http://www.gorillawalker.com/the-tao-of-abundance-eight-ancient-principles-for-abundant-living.pdf
    • http://www.gorillawalker.com/appropriate-word-finding-the-best-way-to-say-what-you.pdf
    • http://www.gorillawalker.com/where-the-passion-is-a-reading-of-kierkegaard-s-philosophical.pdf
    • http://www.gorillawalker.com/php-objects-patterns-and-practice.pdf
    • http://www.gorillawalker.com/afterschool-charisma-t-9.pdf
    • http://www.gorillawalker.com/geog-2-students-book.pdf
    • http://www.gorillawalker.com/the-rise-of-supernatural-fiction-1762-1800-cambridge-studies-in.pdf
    • http://www.gorillawalker.com/a-journey-to-nepal.pdf
    • http://www.gorillawalker.com/statistical-analysis-techniques-in-particle-physics-fits-density-estimation-and.pdf
    • http://www.gorillawalker.com/north-east-poland-crossbill-guides.pdf
    • http://www.gorillawalker.com/differential-diagnosis-common-complaints.pdf
    • http://www.gorillawalker.com/chronicon-anonymi-auctoris-ad-annum-christi-1234-pertinens-volume-2.pdf
    • http://www.gorillawalker.com/army-doctrine-reference-publication-adrp-3-07-stability-august-2012.pdf
    • http://www.gorillawalker.com/alice-in-the-country-of-clover-cheshire-cat-waltz-vol.pdf
    • http://www.gorillawalker.com/spice-girls.pdf
    • http://www.gorillawalker.com/treatise-on-zoology-anatomy-taxonomy-biology-the-myriapoda-volume-1.pdf
    • http://www.gorillawalker.com/a-child-s-book-of-blessings-barefoot-beginners.pdf
    • http://www.gorillawalker.com/nature-s-table-traditional-vegetable-dishes-from-the-kabyle-berber.pdf
    • http://www.gorillawalker.com/an-analysis-of-the-regression-model-for-nonsaturating-logic-circuit.pdf
    • http://www.gorillawalker.com/lucas-and-schmidt-s-cases-and-materials-on-admiralty-6th.pdf
    • http://www.gorillawalker.com/chronic-fatigue-syndrome-is-the-cause-physical-or-psychological-cq.pdf
    • http://www.gorillawalker.com/god-and-the-future-wolfhart-pannenberg-s-eschatological-doctrine-of.pdf
    • http://www.gorillawalker.com/research-methods-the-basics.pdf
    • http://www.gorillawalker.com/the-vodka-1000-the-ultimate-collection-of-vodka-cocktails-recipes.pdf
    • http://www.gorillawalker.com/drawing-and-cartooning-sci-fi-a-step-by-step-guid.pdf
    • http://www.gorillawalker.com/bone-and-cinder-a-post-apocalyptic-thriller-zapheads-volume-1.pdf
    • http://www.gorillawalker.com/the-mexican-revolution-a-short-
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://www.aiim.org/pdfa/ns/extension/
    • http://www.aiim.org/pdfa/ns/schema#
    • http://www.aiim.org/pdfa/ns/property#
    • http://www.aiim.org/pdfa/ns/id/

Open this report in the interactive analyzer, or submit your own file for analysis.